BSC2086C.docx - BSC2086C DISCUSSION 2 Transposition of the...

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BSC2086C DISCUSSION 2 Transposition of the great vessels is a heart defect that occurs from birth. This is cause during the first 8 weeks of pregnancy because this is the time when the heart forms during the fetal development, the large vessels that carry blood from the heart to the lungs and to the body are improperly connected. In a normal heart, blood that returns from the body goes through the right side of the heart and pulmonary artery to the lungs to get oxygen. The blood then comes back to the left side of the heart and travels out the aorta to the body. In TGV, the blood goes to the lungs, picks up oxygen then returns to the heart and flows back to the lungs without ever going to the body. The blood from the body returns to the heart and goes back to the body without ever picking up oxygen in the lungs. Some congenital heart defects may have a genetic link causing heart problems to occur more often in certain families. The most common indication of TGA in a newborn is cyanosis (blueish skin color) in the first day of
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